1/* 2 * Copyright (C) 2010, 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef WebProcessProxy_h 27#define WebProcessProxy_h 28 29#include "APISession.h" 30#include "ChildProcessProxy.h" 31#include "MessageReceiverMap.h" 32#include "PlatformProcessIdentifier.h" 33#include "PluginInfoStore.h" 34#include "ProcessLauncher.h" 35#include "ResponsivenessTimer.h" 36#include "WebConnectionToWebProcess.h" 37#include "WebPageProxy.h" 38#include "WebProcessProxyMessages.h" 39#include <WebCore/LinkHash.h> 40#include <memory> 41#include <wtf/Forward.h> 42#include <wtf/HashMap.h> 43#include <wtf/PassRefPtr.h> 44#include <wtf/RefCounted.h> 45 46#if ENABLE(CUSTOM_PROTOCOLS) 47#include "CustomProtocolManagerProxy.h" 48#endif 49 50#if PLATFORM(IOS) 51#include "ProcessThrottler.h" 52#endif 53 54namespace WebCore { 55class URL; 56struct PluginInfo; 57}; 58 59namespace WebKit { 60 61class DownloadProxyMap; 62class WebBackForwardListItem; 63class WebContext; 64class WebPageGroup; 65struct WebNavigationDataStore; 66 67class WebProcessProxy : public ChildProcessProxy, ResponsivenessTimer::Client { 68public: 69 typedef HashMap<uint64_t, RefPtr<WebBackForwardListItem>> WebBackForwardListItemMap; 70 typedef HashMap<uint64_t, RefPtr<WebFrameProxy>> WebFrameProxyMap; 71 typedef HashMap<uint64_t, WebPageProxy*> WebPageProxyMap; 72 73 static PassRefPtr<WebProcessProxy> create(WebContext&); 74 ~WebProcessProxy(); 75 76 static WebProcessProxy* fromConnection(IPC::Connection* connection) 77 { 78 return static_cast<WebProcessProxy*>(ChildProcessProxy::fromConnection(connection)); 79 } 80 81 WebConnection* webConnection() const { return m_webConnection.get(); } 82 83 WebContext& context() { return m_context.get(); } 84 85 static WebPageProxy* webPage(uint64_t pageID); 86 PassRefPtr<WebPageProxy> createWebPage(PageClient&, const WebPageConfiguration&); 87 void addExistingWebPage(WebPageProxy*, uint64_t pageID); 88 void removeWebPage(uint64_t pageID); 89 90 WTF::IteratorRange<WebPageProxyMap::const_iterator::Values> pages() const { return m_pageMap.values(); } 91 unsigned pageCount() const { return m_pageMap.size(); } 92 93 void addVisitedLinkProvider(VisitedLinkProvider&); 94 void addWebUserContentControllerProxy(WebUserContentControllerProxy&); 95 void didDestroyVisitedLinkProvider(VisitedLinkProvider&); 96 void didDestroyWebUserContentControllerProxy(WebUserContentControllerProxy&); 97 98 WebBackForwardListItem* webBackForwardItem(uint64_t itemID) const; 99 100 ResponsivenessTimer* responsivenessTimer() { return &m_responsivenessTimer; } 101 102 WebFrameProxy* webFrame(uint64_t) const; 103 bool canCreateFrame(uint64_t frameID) const; 104 void frameCreated(uint64_t, WebFrameProxy*); 105 void disconnectFramesFromPage(WebPageProxy*); // Including main frame. 106 size_t frameCountInPage(WebPageProxy*) const; // Including main frame. 107 108 void updateTextCheckerState(); 109 110 void registerNewWebBackForwardListItem(WebBackForwardListItem*); 111 112 void willAcquireUniversalFileReadSandboxExtension() { m_mayHaveUniversalFileReadSandboxExtension = true; } 113 void assumeReadAccessToBaseURL(const String&); 114 bool hasAssumedReadAccessToURL(const WebCore::URL&) const; 115 116 bool checkURLReceivedFromWebProcess(const String&); 117 bool checkURLReceivedFromWebProcess(const WebCore::URL&); 118 119 static bool fullKeyboardAccessEnabled(); 120 121 DownloadProxy* createDownloadProxy(); 122 123 void pageSuppressibilityChanged(WebPageProxy*); 124 void pagePreferencesChanged(WebPageProxy*); 125 126 void didSaveToPageCache(); 127 void releasePageCache(); 128 129#if PLATFORM(COCOA) 130 bool allPagesAreProcessSuppressible() const; 131 void updateProcessSuppressionState(); 132#endif 133 134 void enableSuddenTermination(); 135 void disableSuddenTermination(); 136 137 void requestTermination(); 138 139 RefPtr<API::Object> apiObjectByConvertingToHandles(API::Object*); 140 141 void windowServerConnectionStateChanged(); 142 143 void sendProcessWillSuspend(); 144 void processReadyToSuspend(); 145 void sendCancelProcessWillSuspend(); 146 void didCancelProcessSuspension(); 147 148 ProcessThrottler& throttler() { return *m_throttler; } 149 150private: 151 explicit WebProcessProxy(WebContext&); 152 153 // From ChildProcessProxy 154 virtual void getLaunchOptions(ProcessLauncher::LaunchOptions&) override; 155 void platformGetLaunchOptions(ProcessLauncher::LaunchOptions&); 156 virtual void connectionWillOpen(IPC::Connection*) override; 157 virtual void connectionWillClose(IPC::Connection*) override; 158 159 // Called when the web process has crashed or we know that it will terminate soon. 160 // Will potentially cause the WebProcessProxy object to be freed. 161 void disconnect(); 162 163 // IPC message handlers. 164 void addBackForwardItem(uint64_t itemID, uint64_t pageID, const PageState&); 165 void didDestroyFrame(uint64_t); 166 167 void shouldTerminate(bool& shouldTerminate); 168 169 // Plugins 170#if ENABLE(NETSCAPE_PLUGIN_API) 171 void getPlugins(bool refresh, Vector<WebCore::PluginInfo>& plugins, Vector<WebCore::PluginInfo>& applicationPlugins); 172#endif // ENABLE(NETSCAPE_PLUGIN_API) 173#if ENABLE(NETSCAPE_PLUGIN_API) 174 void getPluginProcessConnection(uint64_t pluginProcessToken, PassRefPtr<Messages::WebProcessProxy::GetPluginProcessConnection::DelayedReply>); 175#endif 176#if ENABLE(NETWORK_PROCESS) 177 void getNetworkProcessConnection(PassRefPtr<Messages::WebProcessProxy::GetNetworkProcessConnection::DelayedReply>); 178#endif 179#if ENABLE(DATABASE_PROCESS) 180 void getDatabaseProcessConnection(PassRefPtr<Messages::WebProcessProxy::GetDatabaseProcessConnection::DelayedReply>); 181#endif 182 183 // IPC::Connection::Client 184 friend class WebConnectionToWebProcess; 185 virtual void didReceiveMessage(IPC::Connection*, IPC::MessageDecoder&) override; 186 virtual void didReceiveSyncMessage(IPC::Connection*, IPC::MessageDecoder&, std::unique_ptr<IPC::MessageEncoder>&) override; 187 virtual void didClose(IPC::Connection*) override; 188 virtual void didReceiveInvalidMessage(IPC::Connection*, IPC::StringReference messageReceiverName, IPC::StringReference messageName) override; 189 190 // ResponsivenessTimer::Client 191 void didBecomeUnresponsive(ResponsivenessTimer*) override; 192 void interactionOccurredWhileUnresponsive(ResponsivenessTimer*) override; 193 void didBecomeResponsive(ResponsivenessTimer*) override; 194 195 // ProcessLauncher::Client 196 virtual void didFinishLaunching(ProcessLauncher*, IPC::Connection::Identifier) override; 197 198 // History client 199 void didNavigateWithNavigationData(uint64_t pageID, const WebNavigationDataStore&, uint64_t frameID); 200 void didPerformClientRedirect(uint64_t pageID, const String& sourceURLString, const String& destinationURLString, uint64_t frameID); 201 void didPerformServerRedirect(uint64_t pageID, const String& sourceURLString, const String& destinationURLString, uint64_t frameID); 202 void didUpdateHistoryTitle(uint64_t pageID, const String& title, const String& url, uint64_t frameID); 203 204 // Implemented in generated WebProcessProxyMessageReceiver.cpp 205 void didReceiveWebProcessProxyMessage(IPC::Connection*, IPC::MessageDecoder&); 206 void didReceiveSyncWebProcessProxyMessage(IPC::Connection*, IPC::MessageDecoder&, std::unique_ptr<IPC::MessageEncoder>&); 207 208 bool canTerminateChildProcess(); 209 210 ResponsivenessTimer m_responsivenessTimer; 211 212 RefPtr<WebConnectionToWebProcess> m_webConnection; 213 Ref<WebContext> m_context; 214 215 bool m_mayHaveUniversalFileReadSandboxExtension; // True if a read extension for "/" was ever granted - we don't track whether WebProcess still has it. 216 HashSet<String> m_localPathsWithAssumedReadAccess; 217 218 WebPageProxyMap m_pageMap; 219 WebFrameProxyMap m_frameMap; 220 WebBackForwardListItemMap m_backForwardListItemMap; 221 222 HashSet<VisitedLinkProvider*> m_visitedLinkProviders; 223 HashSet<WebUserContentControllerProxy*> m_webUserContentControllerProxies; 224 225 std::unique_ptr<DownloadProxyMap> m_downloadProxyMap; 226 227#if ENABLE(CUSTOM_PROTOCOLS) 228 CustomProtocolManagerProxy m_customProtocolManagerProxy; 229#endif 230 231#if PLATFORM(COCOA) 232 HashSet<uint64_t> m_processSuppressiblePages; 233 bool m_processSuppressionEnabled; 234#endif 235 236 int m_numberOfTimesSuddenTerminationWasDisabled; 237 std::unique_ptr<ProcessThrottler> m_throttler; 238}; 239 240} // namespace WebKit 241 242#endif // WebProcessProxy_h 243